The close confidant of Prime Minister David Cameron founded Brunswick in 1987. The agency has a roster of clients including BP and EDF Energy and was recently awarded the PR duties for embattled mining company Eurasian Natural Resources Corporation. Parker was awarded his knighthood for services to business, charitable giving and philanthropy.

Parker is a UK business ambassador, a global ambassador for the School of African and Oriental Studies, chairman of HRH The Duke of Edinburgh’s Commonwealth Study Conferences and chairman of Save the Children UK, the international children’s charity.

He learned his craft at Broad Street Associates under founder and industry luminary Brian Basham and is friends with top-level politicians from both sides of the House. The Prime Minister was his special guest at his 50th birthday party and a holiday guest of Parker in 2008. The former prime minister Gordon Brown is also godfather to Parker's son William.

Parker had an unusual entry into the realm of PR, counting oilrig worker and rock band manager among his first jobs.